We divide 439416 by 12
Let's see how many times 12 fits into 439416.

Step 1:
If we divide 4 by 12, we get 0 and a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 12

Let's proceed to step 2:
If we divide 43 by 12, we get 3 and a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 36 away from 43, we end up with 7.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 12

Going ahead to step 3:
When dividing 79 by 12, we get 6 with a remainder of 7.
Put 6 as the next digit of the answer. 
Result so far: 36.0
Subtract 72 from 79 to get 7.
Bring next digit (4) of the dividend behind the 7 and repeat the process: 74 / 12

Let's proceed to step 4:
If we divide 74 by 12, we get 6 and a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 366.0
Subtract 72 from 74 to get 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 12

On to step 5:
If we divide 21 by 12, we get 1 and a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 3661.0
Subtract 12 from 21 to get 9.
Take the next digit (6) from the dividend and append it to 9, then repeat: 96 / 12

On to step 6:
12 can be fit into 96 8 times, resulting in a remainder of 0.
Use 8 as the next digit of our solution. 
Result so far: 36618.0
Subtract 96 from 96 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 7:
If we divide 0 by 12, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 36618.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
When dividing 0 by 12, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 36618.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 36618.0, and the remainder is 0.0.